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If a system call comes in requesting to retrieve an attribute named

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"", temporarily map it to a call to extattr_list_vp() to provide
compatibility for older applications using the "" API to retrieve
EA lists.

Use VOP_LISTEXTATTR() to support extattr_list_vp() rather than
VOP_GETEXTATTR(..., "", ...).

Obtained from:	TrustedBSD Project
Sponsored by:	DARPA, Network Asssociates Laboratories
This commit is contained in:
Robert Watson 2003-06-05 05:55:34 +00:00
parent a6f1342ff6
commit 777621799b
2 changed files with 26 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
sys/kern/vfs_extattr.c
View File

@ -88,6 +88,9 @@ static int setutimes(struct thread *td, struct vnode *,
static int vn_access(struct vnode *vp, int user_flags, struct ucred *cred,
struct thread *td);
static int extattr_list_vp(struct vnode *vp, int attrnamespace, void *data,
size_t nbytes, struct thread *td);
int (*union_dircheckp)(struct thread *td, struct vnode **, struct file *);
int (*softdep_fsync_hook)(struct vnode *);
@ -4052,6 +4055,15 @@ extattr_get_vp(struct vnode *vp, int attrnamespace, const char *attrname,
size_t size, *sizep;
int error;
/*
* XXX: Temporary API compatibility for applications that know
* about this hack ("" means list), but haven't been updated
* for the extattr_list_*() system calls yet. This will go
* away for FreeBSD 5.3.
*/
if (strlen(attrname) == 0)
return (extattr_list_vp(vp, attrnamespace, data, nbytes, td));
VOP_LEASE(vp, td, td->td_ucred, LEASE_READ);
vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, td);
@ -4371,7 +4383,7 @@ extattr_list_vp(struct vnode *vp, int attrnamespace, void *data,
goto done;
#endif
error = VOP_GETEXTATTR(vp, attrnamespace, "", auiop, sizep,
error = VOP_LISTEXTATTR(vp, attrnamespace, auiop, sizep,
td->td_ucred, td);
if (auiop != NULL) {

14
sys/kern/vfs_syscalls.c
View File

@ -88,6 +88,9 @@ static int setutimes(struct thread *td, struct vnode *,
static int vn_access(struct vnode *vp, int user_flags, struct ucred *cred,
struct thread *td);
static int extattr_list_vp(struct vnode *vp, int attrnamespace, void *data,
size_t nbytes, struct thread *td);
int (*union_dircheckp)(struct thread *td, struct vnode **, struct file *);
int (*softdep_fsync_hook)(struct vnode *);
@ -4052,6 +4055,15 @@ extattr_get_vp(struct vnode *vp, int attrnamespace, const char *attrname,
size_t size, *sizep;
int error;
/*
* XXX: Temporary API compatibility for applications that know
* about this hack ("" means list), but haven't been updated
* for the extattr_list_*() system calls yet. This will go
* away for FreeBSD 5.3.
*/
if (strlen(attrname) == 0)
return (extattr_list_vp(vp, attrnamespace, data, nbytes, td));
VOP_LEASE(vp, td, td->td_ucred, LEASE_READ);
vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, td);
@ -4371,7 +4383,7 @@ extattr_list_vp(struct vnode *vp, int attrnamespace, void *data,
goto done;
#endif
error = VOP_GETEXTATTR(vp, attrnamespace, "", auiop, sizep,
error = VOP_LISTEXTATTR(vp, attrnamespace, auiop, sizep,
td->td_ucred, td);
if (auiop != NULL) {